US9349337B2 - Display device - Google Patents

Display device Download PDF

Info

Publication number
US9349337B2
US9349337B2 US14/103,720 US201314103720A US9349337B2 US 9349337 B2 US9349337 B2 US 9349337B2 US 201314103720 A US201314103720 A US 201314103720A US 9349337 B2 US9349337 B2 US 9349337B2
Authority
US
United States
Prior art keywords
pixel
display
electrodes
brightness
liquid crystal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US14/103,720
Other languages
English (en)
Other versions
US20140184660A1 (en
Inventor
Toshiaki Fujino
Yasunori Niwano
Syuichi KIRA
Shingo Nagano
Akimasa Yuuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trivale Technologies LLC
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUJINO, TOSHIAKI, KIRA, SYUICHI, NAGANO, SHINGO, NIWANO, YASUNORI, YUUKI, AKIMASA
Publication of US20140184660A1 publication Critical patent/US20140184660A1/en
Priority to US15/077,556 priority Critical patent/US9412312B2/en
Application granted granted Critical
Publication of US9349337B2 publication Critical patent/US9349337B2/en
Assigned to TRIVALE TECHNOLOGIES, LLC reassignment TRIVALE TECHNOLOGIES, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MITSUBISHI ELECTRIC CORPORATION
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • H04N13/0409—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0434—Flat panel display in which a field is applied parallel to the display plane
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0232—Special driving of display border areas
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0613—The adjustment depending on the type of the information to be displayed
    • G09G2320/062—Adjustment of illumination source parameters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/10—Special adaptations of display systems for operation with variable images

Definitions

  • the present invention relates to display devices such as a liquid crystal display device including a liquid crystal display panel, and more particularly, to the brightness adjustment technology in image display.
  • Japanese Patent No. 2857429 discloses a 3-dimensional image display device including a barrier generating unit and an image display unit.
  • the barrier generating unit generates parallax barrier stripes through electronic control by a transmissive display element.
  • the image display unit includes a display screen disposed behind a position at which parallax barrier stripes are generated with a predetermined distance therefrom and, in display of a 3-dimensional image, is capable of outputting and displaying on the display screen a multidirectional image containing stripes for the left image and right image alternately arranged correspondingly to the parallax barrier stripes.
  • parallax barrier stripes are generated electronically, and the shape (the number, width, and interval of stripes), position (phase), concentration, and the like of the parallax barrier stripes generated can be variably controlled at will.
  • This enables the above-mentioned 3-dimensional image display device to be used as a 2-dimensional image display device, a 3-dimensional image display device, and display methods using them, realizing a compatible image display device and an image display method using the device.
  • the lateral (horizontal) pixel aperture width is made smaller with a black matrix (light shielding film) compared with an image display device that displays only a single image. This prevents both lights of two images reaching the left and right eyes from existing, allowing an observer to recognize stereoscopic vision with little crosstalk.
  • Japanese Patent Application Laid-Open No. 04-145416 (1992) discloses a liquid crystal display device including multiple pixels segmented for RGB basic colors, in which the area ratio or distribution ratio of the pixels to be respectively distributed for the basic colors is changed.
  • the liquid crystal display device described above is configured to easily correct the imbalance in display colors.
  • the pixel aperture width is kept narrow also in a case of normal single image display. This results in a lower transmittance of the display panel than that of an image display device that displays only a single image, which decreases brightness.
  • the imbalance in display colors can be corrected by changing the area ratio or distribution ratio of the pixels in the initial design stage of a panel.
  • the imbalance in display colors cannot be corrected after manufacturing of the panel and, for example, color adjustment of correcting the imbalance in display colors due to variations in a manufacturing process cannot be performed.
  • the present invention has an object to obtain a display device capable of variable control of brightness or color adjustment of display colors after a device is completed.
  • a display device includes a display panel and a pixel-peripheral-region brightness control unit.
  • the display panel performs image display with multiple pixels arranged in matrix, and the pixel-peripheral-region brightness control unit controls the brightness of pixel peripheral regions being peripheral portions of each of the multiple pixels, independently of a pixel main region other than the pixel peripheral regions.
  • the brightness of the pixel peripheral regions of multiple pixels can be variably controlled in accordance with a display mode by the pixel-peripheral-region brightness control unit after the device is completed.
  • FIG. 1 is a cross-sectional view showing a configuration of an auto-stereoscopic image display device according to a first preferred embodiment of the present invention
  • FIGS. 2A and 2B are explanatory views schematically showing a one-pixel structure of a display panel displaying a 3-dimensional image in the first preferred embodiment
  • FIGS. 3A and 3B are explanatory views schematically showing a one-pixel structure of the display panel displaying a 2-dimensional image in the first preferred embodiment
  • FIG. 4 is an explanatory view schematically showing the contents of voltage control for multiple transparent counter electrodes by a pixel peripheral region controller in the first preferred embodiment
  • FIGS. 5A and 5B are cross-sectional views showing a configuration of a display panel of a display device according to a second preferred embodiment of the present invention.
  • FIG. 6 is an explanatory view schematically showing the contents of voltage control for multiple transparent counter electrodes by a pixel peripheral region controller in the second preferred embodiment.
  • FIG. 1 is a cross-sectional view showing a configuration of a display device (auto-stereoscopic display device of the liquid crystal parallax barrier system) according to a first preferred embodiment of the present invention.
  • An auto-stereoscopic image display device 10 is capable of simultaneously displaying two images (3-dimensional image) composed of a right image (parallax image for right eye (image for first observation direction; type 1 image)) and a left image (parallax image for left eye that slightly differs from the parallax image for right eye (image for second observation direction; type 2 image)).
  • the auto-stereoscopic image display device 10 allows visual recognition of a stereoscopic image with naked eyes without the use of special glasses or allows display of images different from one observation direction to another.
  • a case in which the auto-stereoscopic image display device 10 displays parallax images for the right eye and left eye is mainly described below.
  • the up-down direction, left-right direction, and depth direction in FIG. 1 are hereinbelow referred to as a front-back direction, lateral direction (horizontal direction), and longitudinal direction (vertical direction), respectively.
  • FIG. 1 shows a cross-sectional structure of the auto-stereoscopic image display device 10 (auto-stereoscopic display).
  • the auto-stereoscopic image display device 10 includes a (liquid crystal) display panel 20 and a parallax barrier panel 30 arranged behind the display panel 20 (in a lower side of FIG. 1 ).
  • the display panel 20 is a matrix type display panel that displays images with multiple pixels arranged in matrix
  • FIG. 1 shows the display panel 20 (liquid crystal display panel) to which a liquid crystal display is applied.
  • the display panel 20 mainly includes a liquid crystal layer 23 in which liquid crystals are formed, transparent substrates 22 and 25 opposed to each other with the liquid crystal layer 23 sandwiched therebetween, and an upper polarizing plate 21 and an intermediate polarizing plate 26 respectively provided to the transparent substrates 22 and 25 on the sides opposite to the liquid crystal layer 23 .
  • An electrode for driving liquid crystals of the display panel 20 is not shown in FIG. 1 .
  • sub-pixel regions for right eye 23 R regions for type 1 image in which an image for a right eye 2 R of an observer 1 is displayed and sub-pixel regions for left eye 23 L (regions for type 2 image) in which an image for a left eye 2 L of the observer 1 is displayed are alternately arranged in the lateral direction (horizontal direction), each of which being sandwiched between light shielding portions 24 .
  • the sub-pixel region for right eye 23 R and sub-pixel region for left eye 23 L are set to have the same or approximately the same horizontal width.
  • the sub-pixel regions for right eye 23 R and sub-pixel regions for left eye 23 L configured as described above are laterally arranged at predetermined regular pitches in the display panel 20 .
  • the sub-pixel regions for right eye 23 R and sub-pixel regions for left eye 23 L are arranged not only laterally but also longitudinally.
  • the parallax barrier panel 30 includes two transparent substrates 32 and 35 , a liquid crystal layer 33 sandwiched and held between the transparent substrates 32 and 35 , and a lower polarizing plate 36 provided to the transparent substrate 35 on the side opposite to the liquid crystal layer 33 .
  • the intermediate polarizing plate 26 of the display panel 20 also functions as the polarizing plate between the parallax barrier panel 30 and the display panel 20 .
  • An electrode for driving liquid crystals of the parallax barrier panel 30 and the like are not shown in FIG. 1 for the sake of description.
  • Multiple stripe transparent electrodes extending in the longitudinal direction (depth direction in FIG. 1 ) are formed on the surface on the liquid crystal layer 33 side of one of the transparent substrates 32 and 35 of the parallax barrier panel 30 , and a (solid) transparent counter electrode is formed entirely on the surface on the liquid crystal layer 33 side of the other transparent substrate.
  • the transparent electrodes and the like formed on the transparent substrates 32 and 35 apply an electric field to the liquid crystal layer 33 , so that the liquid crystal molecules of the liquid crystal layer 33 are driven.
  • the twisted nematic (TN) mode is employed as a liquid crystal mode of the parallax barrier panel 30 in the first preferred embodiment.
  • TN twisted nematic
  • a lateral pixel aperture width is made smaller than that of the display panel displaying only a single image (2-dimensional image).
  • the lateral pixel aperture width is about 70 to 90% of the pixel pitch (distance between the center position of the sub-pixel region for right eye 23 R and the center position of the sub-pixel region for left eye 23 L) in the display panel displaying only a single image.
  • the lateral pixel aperture width is about 50% of the pixel pitch in the display panel 20 displaying two images, such as the auto-stereoscopic image display device 10 .
  • the lateral pixel aperture width of the display panel 20 that exceeds 50% of the pixel pitch causes a region in which the lights of two images reaching the left and right eyes both exist, which degrades the display characteristics of a 3-dimensional image.
  • the aperture width of the parallax barrier needs to be set below 50%. Meanwhile, the light transmittance decreases as the aperture width of the parallax barrier becomes smaller, whereby a dark image with low brightness is displayed. This degrades a display image.
  • the lateral pixel aperture width of the display panel 20 needs to be set small around 50% of the pixel pitch.
  • the pixel aperture width is reduced with a black matrix (light shielding film)
  • the light is shielded unnecessarily when a 2-dimensinoal image is displayed with the entire parallax barrier panel 30 being transmissive, which lowers brightness, degrading the display characteristics.
  • the brightness of the backlight needs to be increased because the light use efficiency is poor, resulting in an increase in power consumption.
  • FIGS. 2A and 2B are explanatory views schematically showing a structure of one pixel of the display panel 20 showing a 3-dimensional image (two images; second format image) in the first preferred embodiment.
  • FIGS. 3A and 3B are explanatory views schematically showing the structure of one pixel of the display panel 20 displaying a 2-dimensional image (single image; first format image) in the first preferred embodiment.
  • FIG. 2A is a plan view and FIG. 2B is a cross-sectional view showing a cross-sectional structure taken along A-A of FIG. 2A .
  • FIG. 3A is a plan view, and FIG. 3B is a cross-sectional view showing a cross-sectional structure taken along B-B of FIG. 3A .
  • an in-plane switching mode is used as a liquid crystal display mode.
  • a lateral electric field is generated between a pixel electrode being a first electrode and a common electrode being a second electrode among multiple comb-shaped electrodes 5 formed on one substrate (transparent substrate 25 on the lower side of FIGS. 2A and 2B ), and liquid crystal molecules 23 e are rotated in a plane, to thereby control light transmittance.
  • transparent counter electrodes 4 that are not provided in a liquid crystal panel of a normal in-plane switching mode are formed correspondingly to pixel peripheral regions being both-end regions in the horizontal direction (lateral direction) on the upper transparent substrate 22 side.
  • the transparent counter electrodes 4 are formed below the transparent substrate 22 via a color filter layer 27 (a light-shielding film 27 S and a color material film 27 C) and an overcoat film 28 .
  • FIG. 4 is an explanatory view schematically showing the contents of voltage control for multiple transparent counter electrodes 4 when a pixel peripheral region controller 61 performs a brightness setting process.
  • the pixel peripheral region controller 61 sets the voltage state of a transparent counter electrode group 104 by supplying a control voltage V 61 set as a black display voltage VA in common to multiple transparent counter electrodes 4 forming the transparent counter electrode group 104 or by causing the multiple transparent counter electrodes 4 to be floating without supplying the control voltage V 61 , to thereby perform the brightness setting process.
  • the multiple transparent counter electrodes 4 correspond to multiple pixels and are provided independently of each other so as to control the liquid crystal molecules 23 e in the pixel peripheral regions of the corresponding pixels.
  • the pixel peripheral region controller 61 supplies the transparent counter electrode group 104 with the control voltage V 61 set as the black display voltage VA during the display of a 3-dimensional image (second format image), that is, while the parallax barrier panel 30 is partially shielded from the light.
  • the black display voltage VA is set to a voltage value at which an electric field, which is capable of setting the light shielded state in which the liquid crystal molecules 23 e located below the transparent counter electrodes 4 rise, is generated.
  • the timing at which the positive polarity or negative polarity is achieved may be controlled such that the control voltage V 61 , which is a drive signal for supplying the black display voltage VA to the transparent counter electrode group 104 , is switched and varied in synchronization with the polarity switching of a drive signal having a voltage to be applied to the comb-shaped electrodes 5 for display.
  • V 61 which is a drive signal for supplying the black display voltage VA to the transparent counter electrode group 104
  • the black display voltage VA is set as follows.
  • the black display voltage VA is variably set as follows, so that black display constantly (generally) appears in the pixel peripheral regions.
  • the pixel electrode voltage VB of the comb-shaped electrode 5 is set to 10 V during positive polarity (a potential difference between VB and VC is +5 V).
  • the black display voltage VA is set to 0 V, and a potential difference of 10 V is provided between the transparent counter electrode 4 and the comb-shaped electrode 5 (pixel electrode).
  • the pixel electrode voltage VB is set to 0 V during negative polarity (a potential difference between VB and VC is ⁇ 5 V).
  • the black display voltage VA is set to 10 V and, similarly to the positive polarity, a potential difference of 10 V is provided between the transparent counter electrode 4 and the comb-shaped electrodes 5 (pixel electrode).
  • the black display voltage VA is varied above or below the common electrode voltage VC being a reference value in accordance with the polarity (10 V (positive polarity) to 0 V (negative polarity)) of the pixel electrode voltage VB in white display, whereby the pixel peripheral regions can be always set to black display.
  • the black display voltage VA with which a sufficiently high vertical electric field can be generated between the transparent counter electrode 4 and the comb-shaped electrodes 5 , is set in consideration of the polarity in white display of the lateral electric field between the pixel electrode and the common electrode among the comb-shaped electrodes 5 , as described above. Accordingly, black display can be always shown in the pixel peripheral regions corresponding to the transparent counter electrodes 4 provided to the transparent substrate 22 , without depending on the display state of the pixel main region other than the pixel peripheral regions.
  • a black display region 23 b in which black display is shown by the transparent counter electrode 4 as well as the light-shielding film 27 S is set as the light shielding portion 24 in 3-dimensional display. This substantially reduces the lateral (horizontal) pixel aperture width in the lateral direction, whereby excellent display characteristics with small crosstalk can be achieved in 3-dimensional image display.
  • the pixel peripheral region controller 61 does not perform voltage setting with the control voltage V 61 in display of a single image (first format image), that is, while the parallax barrier panel 30 is entirely shielded from the light but sets a voltage such that multiple transparent counter electrodes 4 of the transparent counter electrode group 104 are all floating. Accordingly, the display panel 20 has a substantially equivalent structure to the structure in which the transparent counter electrodes 4 are not provided.
  • a vertical electric field is not generated by the transparent counter electrode 4 and the comb-shaped electrodes 5 , whereby the display (brightness) in the pixel peripheral region corresponding to the transparent counter electrode 4 is identical to the display (brightness) in the pixel main region.
  • the contents of the display in the pixel peripheral region can be determined by the lateral electric field between the pixel electrode and the common electrode.
  • an image display region 12 B obtained by widening the image display region 12 A toward the left and right by an amount of extended image display regions 12 x in the pixel peripheral region is formed, and a black display region 13 B that is narrowed in the left and right by the amount of the extended image display regions 12 x is formed.
  • the pixel peripheral regions contribute to the aperture together with the pixel main region (image display region 12 A), improving the transmittance of each pixel, so that excellent display characteristics without a decrease in brightness can be achieved.
  • the black display region 13 B in FIGS. 3A and 3B is a region that needs to be shielded from the light also in 2-dimensional display, where, specifically, a light leak near interconnections is prevented and a thin film transistor is shielded from the light.
  • the light-shielding film 27 S such as a low-reflection metal film or a carbon dispersed resin is formed on the transparent substrate 22 in a region corresponding to the black display region 13 B.
  • the color material film 27 C is formed in the color filter layer 27 in which the light-shielding film 27 S is not formed.
  • the brightness setting process is performed by a pixel-peripheral-region brightness control unit composed of the multiple transparent counter electrodes 4 and the pixel peripheral region controller 61 .
  • This unit enables to variably control the brightness (presence or absence of black display) of the pixel peripheral regions of multiple pixels in accordance with the display mode (two-image display or single image display) after the completion of the auto-stereoscopic image display device 10 .
  • image display with light shielding property enhanced in the horizontal direction (lateral direction) by forcibly setting the respective pixel peripheral regions of multiple pixels to the black display state can be performed in two-image display of the display panel 20 .
  • image display with enhanced brightness by setting the brightness in the respective pixel peripheral regions of multiple pixels to the same brightness as that of the pixel main region can be performed in single image display of the display panel 20 .
  • image display can be performed on the display panel 20 being a liquid crystal display panel such that in two-image display, image display with enhanced light shielding property in the horizontal direction is performed by generating an electric field in the liquid crystal layer 33 between the multiple transparent counter electrodes 4 and the comb-shaped electrodes 5 to forcibly set the pixel peripheral regions to the black display state and such that in single image display, image display with enhanced brightness is performed by causing the pixel peripheral region to contain the same contents of the display as those in the pixel main region.
  • the auto-stereoscopic image display device 10 is characterized in that the transparent counter electrodes 4 and the pixel peripheral region controller 61 are provided in the display panel 20 , and thus, the other configuration and operation thereof are similar to those of an auto-stereoscopic image display device of a typical visual field barrier type.
  • the display panel 20 and the parallax barrier panel 30 are driven similarly to the auto-stereoscopic image display device disclosed in, for example, Japanese Patent No. 2857429.
  • the parallax barrier panel 30 is provided behind the display panel 20 in the first preferred embodiment, which may be provided in front of the display panel 20 .
  • the provision of the parallax barrier panel 30 in front of the display panel 20 allows the use of self-luminous display panels, such as an organic EL panel and plasma display as the display panel 20 .
  • self-luminous display panels such as an organic EL panel and plasma display
  • light-emitting in only the pixel peripheral region is controlled independently, whereby similar effects to those described in the first preferred embodiment can be achieved.
  • the transparent counter electrodes 4 are arranged such that the pixel aperture width in the up-down direction in the plan views of FIGS. 2A and 3A (depth direction in the cross-sectional views of FIGS. 2B and 3B ), to thereby reduce crosstalk.
  • the structure as shown in FIG. 2B is also provided in the cross-section taken along C-C of FIG. 2A such that the transparent counter electrodes 4 which are not provided in a liquid crystal panel of a normal in-plane switching mode are formed correspondingly to the pixel peripheral regions being both end regions in the vertical direction (longitudinal direction) on the upper transparent substrate 22 side. This results in a further reduction in crosstalk.
  • the transparent counter electrodes 4 are arranged on the liquid crystal layer 23 side with respect to the overcoat film 28 in the upper transparent substrate 22 of the display panel 20 of an in-plane switching mode in the first preferred embodiment, the transparent counter electrodes 4 may be arranged on the side opposite to the liquid crystal layer 23 with respect to the overcoat film 28 .
  • an electric field between the transparent counter electrodes 4 and the comb-shaped electrodes 5 required for liquid crystals to respond in the longitudinal direction needs to be increased in this arrangement, a 2-dimensional image is unlikely to be affected by the transparent counter electrodes 4 in display. This prevents a decrease in transmittance due to a slight amount of rising of the liquid crystal molecules 23 e.
  • the in-plane switching mode is applied as the liquid crystal mode of the display panel 20 .
  • the fringe field switching (FFS) mode is applied, through the formation of the electrodes equivalent to the transparent counter electrodes 4 on the transparent substrate 22 side, the lateral aperture width can be controlled by the pixel peripheral region controller 61 as in the in-plane switching mode.
  • the counter electrodes are divided such that the counter electrodes (equivalent to the transparent counter electrodes 4 ) for pixel peripheral regions and the counter electrodes for a pixel main region are driven independently. Then, as in the in-plane switching mode, with the pixel peripheral region controller 61 controlling the voltage state (including a floating state) with the control voltage V 61 , the pixel aperture width can be reduced such that black display appears in the pixel peripheral regions in 3-dimensional display.
  • black display appears (so-called normally black) in a case where no voltage is applied between the upper and lower electrodes (one is a pixel electrode and the other is a counter electrode for pixel peripheral region) that sandwich the liquid crystal layer 23 therebetween. Accordingly, in 3-dimensional display, control is made such that no voltage is applied between the upper and lower electrodes in the pixel peripheral region in order that black display may appear in the pixel peripheral region.
  • black display appears through application of a predetermined voltage (black display voltage) between the upper and lower electrodes (one is a pixel electrode and the other is a counter electrode for pixel peripheral region). Accordingly, in 3-dimensional display, control is made such that a black display voltage is applied between the upper and lower electrodes in the pixel peripheral region.
  • control is made such that the voltage to be supplied to the counter electrode for the pixel peripheral region and the voltage to be supplied to the counter electrode for the pixel main region have the same voltage value.
  • the present invention is also applicable to the liquid crystal display panel adopting a liquid crystal mode in which a vertical electric field between a pixel electrode and a counter electrode is used as in the TN mode and VA mode, similarly to the in-plane switching mode.
  • a drive system for the comb-shaped electrodes 5 may be divided and the comb-shaped electrodes 5 for pixel peripheral regions and the comb-shaped electrodes 5 for a pixel main region may be driven independently, so that a voltage between the pixel electrode and the common electrode in the comb-shaped electrodes 5 for pixel peripheral regions is set to almost zero in black display in the pixel peripheral region.
  • Liquid Crystal Display Device Capable of Adjusting Coloration of Color Display Even after Manufacturing of Panel
  • FIGS. 5A and 5B are cross-sectional views showing a configuration of a display panel 50 according to a second preferred embodiment of the present invention.
  • the display panel 50 according to the second preferred embodiment is a display panel that performs image display with multiple pixels arranged in matrix, where an in-plane switching mode is adopted as a liquid crystal mode.
  • transparent counter electrodes 44 are arranged in regions corresponding to pixel peripheral regions of a liquid crystal layer 53 , on a transparent substrate 52 side of the respective pixels of a liquid crystal panel that performs color display with a color material film 57 C of a color filter layer 57 for red, green, and blue (R, G, and B) being color components.
  • the transparent counter electrodes 44 that are not provided in a liquid crystal panel of a normal in-plane switching mode are provided as in the first preferred embodiment. In the configuration shown in FIGS.
  • the transparent counter electrodes 44 are formed below the transparent substrate 52 via the color filter layer 57 (light-shielding film 57 S and color material film 57 C (for RGB)) and an overcoat 58 .
  • comb-shaped electrodes 45 are provided on the lower transparent substrate 55 that is opposed to the transparent substrate 52 as in the first preferred embodiment, and a liquid crystal layer 53 is provided on the transparent substrate 55 including the comb-shaped electrodes 45 .
  • FIG. 6 is an explanatory view schematically showing the contents of voltage control for multiple transparent counter electrodes 44 when a pixel peripheral region controller 62 performs the brightness setting process per color component.
  • a transparent counter electrode 44 for R (the color material film 57 C is red)
  • a transparent counter electrode 44 for G (the color material film 57 C is green)
  • a transparent counter electrode 44 for B (the color material film 57 C is blue) are represented as a transparent counter electrode 44 R, transparent counter electrode 44 G, and transparent counter electrode 44 B, respectively.
  • the transparent counter electrode 44 R, transparent counter electrode 44 G, and transparent counter electrode 44 B for R, G, and B are provided to each of multiple pixels arranged in matrix.
  • the pixel peripheral region controller 62 supplies a control voltage V 62 R in common to the multiple transparent counter electrodes 44 R forming a transparent counter electrode group 144 R.
  • the pixel peripheral region controller 62 supplies a control voltage V 62 G in common to the multiple transparent counter electrodes 44 G forming a transparent counter electrode group 144 G, and supplies a control voltage V 62 B in common to the multiple transparent counter electrodes 44 B forming a transparent counter electrode group 144 B.
  • the control voltages V 62 R, V 62 G, and V 62 B are supplied to the transparent counter electrode groups 144 R, 144 G, and 144 B independently of one another.
  • the multiple transparent counter electrodes 44 R are independently provided so as to control the liquid crystal molecules 53 e in the corresponding pixel peripheral regions of pixels for R
  • the multiple transparent counter electrodes 44 G are independently provided so as to control the liquid crystal molecules 53 e in the corresponding pixel peripheral regions of pixels for G
  • the multiple transparent counter electrodes 44 B are independently provided so as to control the liquid crystal molecules 53 e in the respectively corresponding pixel peripheral regions for pixels for B.
  • the pixel peripheral region controller 62 causes the transparent counter electrodes 44 (all of 44 R, 44 G, and 44 B) to be floating without supplying the control voltage V 62 .
  • the pixel peripheral region controller 62 sets a state equivalent to that of the structure in which the display panel 50 does not include the transparent counter electrodes 44 .
  • the transparent counter electrodes 44 (all of 44 R, 44 G, and 44 B), which enables the contents of the display (brightness) in the pixel peripheral regions corresponding to the transparent counter electrodes 44 to be identical to the contents of the display (brightness) in the pixel main region.
  • the contents of the display in the pixel peripheral regions can be determined by the lateral electric field between a pixel electrode and a common electrode among the comb-shaped electrodes 45 .
  • the pixel peripheral regions contribute to the aperture together with the pixel main region in all the RGB pixels, so that the color display characteristics in manufacturing can be kept as such.
  • the pixel peripheral region controller 62 supplies the control voltage V 62 (at least one of V 62 R, V 62 G, and V 62 B) of the black display voltage VA to multiple transparent counter electrodes 44 (at least one of 44 R, 44 G, and 44 B) of the transparent counter electrode group 144 , which are targets to be decreased in brightness among the transparent counter electrode groups 144 R, 144 G, and 144 B.
  • V 62 at least one of V 62 R, V 62 G, and V 62 B
  • the pixel peripheral region controller 62 supplies the control voltage V 62 B of the black display voltage VA that has been set in common to the transparent counter electrodes 44 B of the transparent counter electrode group 144 B.
  • the black display voltage VA is variably set such that an electric field, which is capable of setting the light shielded state in which the liquid crystal molecules 53 e located below the transparent counter electrodes 44 rise, is generated between the transparent counter electrode 44 B and the comb-shaped electrodes 45 .
  • the timing at which the positive polarity or negative polarity is achieved may be controlled such that the control voltage V 62 B, which is a drive signal for supplying the black display voltage VA to the transparent counter electrode group 144 B, is switched and varied in synchronization with the polarity switching of a drive signal having a voltage to be applied to the comb-shaped electrodes 45 for display.
  • V 62 B which is a drive signal for supplying the black display voltage VA to the transparent counter electrode group 144 B
  • the black display voltage VA with which a high vertical electric field can be always generated between the transparent counter electrode 44 B and the comb-shaped electrodes 45 , is set in consideration of the polarity of the lateral electric field in white display between the pixel electrode and the common electrode, as described above. Accordingly, black display is always shown in the pixel peripheral regions corresponding to the transparent counter electrodes 44 B provided to the transparent substrate 52 , without depending on the display state of the pixel main region other than the pixel peripheral regions. Accordingly, the aperture ratio of the pixels for B is substantially reduced, and the brightness of the pixel for B is set lower than that in the completion of a device, which enables color adjustment regarding RGB color display.
  • the brightness setting process per color component is performed by the pixel-peripheral-region brightness control unit composed of the multiple transparent counter electrodes 44 ( 44 R, 44 G, and 44 B) and the pixel peripheral region controller 62 , whereby after the completion of the display device according to the second preferred embodiment, the brightness (presence or absence of black display) of the pixel peripheral regions of multiple pixels can be variably controlled for each of RGB color components, depending on the presence or absence of the need of color adjustment of RGB color display.
  • the display panel 50 of the display device can perform color adjustment regarding the color display determined by RGB pixels through individual control of the brightness of each of the RGB color component pixels even after the completion of the device.
  • the display device according to the second preferred embodiment is characterized in that the display panel 50 is capable of performing the brightness setting process per color component described above, which may be used in place of the display panel 20 of the auto-stereoscopic image display device 10 as in the first preferred embodiment or may be used as a display panel of a typical display device that displays only a single image.
  • the transparent counter electrodes 44 R, 44 G, and 44 B are each divided into more pieces so as to adjust an area (area of the pixel peripheral region) to which a voltage is applied. This enables to control the aperture ratio of each pixel for each of RGB color components at multiple stages and to set multiple types of contents of brightness decrease, so that the coloration of RGB color display can be adjusted finely.
  • the parts to be processed through control by the pixel peripheral region controllers 61 and 62 shown in FIG. 4 can be executed by programming with, for example, a software-based CPU.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
US14/103,720 2012-12-27 2013-12-11 Display device Active 2034-01-28 US9349337B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/077,556 US9412312B2 (en) 2012-12-27 2016-03-22 Display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-284588 2012-12-27
JP2012284588A JP6124587B2 (ja) 2012-12-27 2012-12-27 表示装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/077,556 Division US9412312B2 (en) 2012-12-27 2016-03-22 Display device

Publications (2)

Publication Number Publication Date
US20140184660A1 US20140184660A1 (en) 2014-07-03
US9349337B2 true US9349337B2 (en) 2016-05-24

Family

ID=51016708

Family Applications (2)

Application Number Title Priority Date Filing Date
US14/103,720 Active 2034-01-28 US9349337B2 (en) 2012-12-27 2013-12-11 Display device
US15/077,556 Active US9412312B2 (en) 2012-12-27 2016-03-22 Display device

Family Applications After (1)

Application Number Title Priority Date Filing Date
US15/077,556 Active US9412312B2 (en) 2012-12-27 2016-03-22 Display device

Country Status (2)

Country Link
US (2) US9349337B2 (enExample)
JP (1) JP6124587B2 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6099892B2 (ja) * 2012-07-09 2017-03-22 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 映像表示装置
JP6207355B2 (ja) * 2013-11-18 2017-10-04 株式会社ジャパンディスプレイ ３次元表示装置
CN104267525B (zh) * 2014-08-18 2018-05-11 深圳市华星光电技术有限公司 立体显示装置及其制作方法
CN104460013B (zh) * 2014-12-10 2016-11-30 深圳市华星光电技术有限公司 基于透镜切换集成成像的3d显示装置及显示方法
CN104597610B (zh) 2015-02-10 2016-12-07 京东方科技集团股份有限公司 一种裸眼3d的显示处理方法、装置及显示设备
CN104808350B (zh) * 2015-05-13 2018-01-09 京东方科技集团股份有限公司 显示基板及其制作方法、显示驱动方法、显示装置
WO2018090552A1 (zh) * 2016-11-21 2018-05-24 华为技术有限公司 一种智能设备的屏幕控制方法及智能设备
TWI633791B (zh) * 2017-10-16 2018-08-21 國立成功大學 景深圖框包裝及解包裝之rgb格式的調整與重建方法及電路
CN110504126B (zh) * 2018-05-16 2021-07-27 无锡小天鹅电器有限公司 控制面板、家用电器及家用电器的控制方法
CN109256076B (zh) * 2018-08-30 2022-02-22 京东方科技集团股份有限公司 边缘像素显示方法、系统、存储设备和显示装置
CN112526763B (zh) * 2020-11-20 2022-09-27 亿信科技发展有限公司 一种光场3d显示装置及其驱动方法
CN114784072B (zh) * 2022-04-18 2025-04-25 京东方科技集团股份有限公司 显示面板、显示装置和交通信号灯

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04145416A (ja) 1990-10-05 1992-05-19 Fujitsu Ltd カラー表示素子
JP2857429B2 (ja) 1989-10-02 1999-02-17 日本放送協会 ３次元画像表示装置および方法
US20120113379A1 (en) * 2009-07-22 2012-05-10 Sharp Kabushiki Kaisha Method for manufacturing liquid crystal display device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005164916A (ja) * 2003-12-02 2005-06-23 Canon Inc 立体表示装置
JP2007017822A (ja) * 2005-07-11 2007-01-25 Sanyo Epson Imaging Devices Corp 表示装置
JP2009204899A (ja) * 2008-02-28 2009-09-10 Epson Imaging Devices Corp 電気光学装置、電子機器および電気光学装置の駆動方法
KR101354329B1 (ko) * 2009-04-17 2014-01-22 엘지디스플레이 주식회사 영상표시장치
JP6147953B2 (ja) * 2011-03-15 2017-06-14 株式会社ジャパンディスプレイ 表示装置
JP6042102B2 (ja) * 2012-05-24 2016-12-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 映像表示装置
JP6057647B2 (ja) * 2012-09-27 2017-01-11 三菱電機株式会社 表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2857429B2 (ja) 1989-10-02 1999-02-17 日本放送協会 ３次元画像表示装置および方法
JPH04145416A (ja) 1990-10-05 1992-05-19 Fujitsu Ltd カラー表示素子
US20120113379A1 (en) * 2009-07-22 2012-05-10 Sharp Kabushiki Kaisha Method for manufacturing liquid crystal display device

Also Published As

Publication number Publication date
US9412312B2 (en) 2016-08-09
US20160203773A1 (en) 2016-07-14
US20140184660A1 (en) 2014-07-03
JP6124587B2 (ja) 2017-05-10
JP2014126764A (ja) 2014-07-07

Similar Documents

Publication Publication Date Title
US9412312B2 (en) Display device
US9257081B2 (en) Two-screen display device
US9325979B2 (en) 3D display method and 3D display device having increased viewing angle
US9164285B2 (en) Three-dimensional image display apparatus
US8587737B2 (en) Display device
KR20130109816A (ko) 입체 영상 표시 장치 및 그것의 구동 방법
US9082329B2 (en) Display panel and 3D display device
US10197830B2 (en) Display device and method for controlling grating of the display device
US9588351B2 (en) Stereoscopic display device
US20140111712A1 (en) Two-dimensional and three-dimensional switchable liquid crystal display device and displaying method thereof
KR102144733B1 (ko) 입체 영상 디스플레이 장치
US9349310B2 (en) Display device for displaying two-dimensional and three-dimensional images without a black matrix
US20130201091A1 (en) Three-dimensional display
US20170285418A1 (en) Liquid crystal display device
US20130148070A1 (en) Parallax barrier for displaying 3d image and display device using the same
US9606367B2 (en) Stereoscopic display device
KR101326577B1 (ko) 입체영상표시장치
US10725319B2 (en) Display device and liquid crystal panel driving method
CN112698533B (zh) 液晶显示装置
US20130050609A1 (en) Display device, barrier device, retardation film and electronic apparatus
US20140184962A1 (en) Stereoscopic display device
US20150331248A1 (en) Liquid Crystal Display Apparatus
KR20120027976A (ko) 입체영상표시장치와 이의 구동방법
KR20120139221A (ko) 영상표시장치
KR20120071735A (ko) 입체영상 표시장치

Legal Events

Date Code Title Description
AS Assignment

Owner name: MITSUBISHI ELECTRIC CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FUJINO, TOSHIAKI;NIWANO, YASUNORI;KIRA, SYUICHI;AND OTHERS;REEL/FRAME:031763/0400

Effective date: 20131001

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

AS Assignment

Owner name: TRIVALE TECHNOLOGIES, LLC, CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MITSUBISHI ELECTRIC CORPORATION;REEL/FRAME:062668/0461

Effective date: 20220927

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8